TABLE 2. Prevalence of short sleep duration* on an average school night among high school students, nationwide and among 30 states and 16 large urban school districts, by selected characteristics — Youth Risk Behavior Surveys, 2015.
| Site/Characteristic | No.† | Prevalence % (95% CI) |
|---|---|---|
| National survey |
14,471 |
72.7 (70.4–74.9) |
|
Sex
| ||
| Female |
7,250 |
75.6 (73.3–77.7)§ |
| Male |
7,165 |
69.9 (66.9–72.7)§ |
|
Grade
| ||
| 9 |
3,673 |
65.6 (62.6–68.5)¶,**,†† |
| 10 |
3,593 |
71.7 (69.2–74.0)§§,**,†† |
| 11 |
3,695 |
77.1 (73.5–80.3)§§,¶ |
| 12 |
3,426 |
77.6 (74.7–80.2)§§,¶ |
|
Race/Ethnicity
| ||
| White¶¶ |
6,592 |
72.0 (69.5–74.4)***,††† |
| Black¶¶ |
1,381 |
76.5 (72.8–79.9)§§§,¶¶¶ |
| Hispanic |
4,729 |
70.2 (66.6–73.5)***,††† |
| Asian¶¶ |
606 |
79.3 (72.2–85.0)§§§,¶¶¶ |
| American Indian/Alaska Native¶¶ |
150 |
75.0 (60.0–85.7) |
| Native Hawaiian/Pacific Islande¶¶ |
86 |
—**** |
|
State surveys
| ||
| Alabama |
1,505 |
72.0 (69.1–74.7) |
| Arkansas |
2,656 |
70.7 (66.3–74.7) |
| California |
1,894 |
71.0 (65.1–76.3) |
| Connecticut |
2,167 |
80.1 (78.3–81.9) |
| Delaware |
2,503 |
75.7 (73.1–78.1) |
| Florida |
6,057 |
76.9 (75.4–78.3) |
| Hawaii |
5,528 |
75.3 (72.7–77.8) |
| Illinois |
3,043 |
76.7 (73.9–79.3) |
| Indiana |
1,871 |
78.6 (76.2–80.8) |
| Kentucky |
2,495 |
75.7 (72.7–78.5) |
| Maryland |
52,043 |
76.2 (75.5–76.9) |
| Massachusetts |
3,015 |
78.0 (75.7–80.2) |
| Michigan |
4,717 |
79.8 (77.1–82.2) |
| Missouri |
1,432 |
72.6 (69.0–75.9) |
| Montana |
4,371 |
67.4 (65.6–69.2) |
| Nebraska |
1,449 |
68.1 (64.5–71.4) |
| Nevada |
1,393 |
75.9 (73.2–78.4) |
| New Hampshire |
13,903 |
71.6 (70.1–73.1) |
| New Mexico |
7,787 |
68.3 (66.7–69.8) |
| New York |
8,129 |
78.1 (75.8–80.3) |
| North Carolina |
5,683 |
75.0 (71.4–78.3) |
| North Dakota |
2,094 |
70.5 (67.8–73.0) |
| Oklahoma |
1,586 |
71.8 (68.5–74.9) |
| Pennsylvania |
2,715 |
74.3 (71.9–76.6) |
| South Carolina |
1,272 |
72.1 (68.0–75.8) |
| South Dakota |
1,296 |
61.8 (57.6–65.8) |
| Tennessee |
4,015 |
70.7 (69.1–72.2) |
| Virginia |
4,264 |
72.8 (70.4–75.1) |
| West Virginia |
1,561 |
82.5 (79.2–85.3) |
| Wyoming |
2,328 |
69.8 (67.7–71.7) |
|
Large urban school district surveys
| ||
| Boston, Massachusetts |
1,547 |
82.4 (79.8–84.7) |
| Broward County, Florida |
1,327 |
85.6 (83.3–87.6) |
| Cleveland, Ohio |
1,434 |
80.0 (77.7–82.1) |
| DeKalb County, Georgia |
1,814 |
80.4 (78.3–82.5) |
| District of Columbia |
10,281 |
71.6 (70.5–72.7) |
| Duval County, Florida |
3,153 |
81.1 (79.1–83.0) |
| Houston, Texas |
2,878 |
75.6 (73.5–77.6) |
| Los Angeles, California |
2,189 |
69.9 (66.3–73.3) |
| Miami-Dade County, Florida |
2,629 |
80.4 (77.9–82.7) |
| New York City, New York |
5,972 |
74.8 (72.4–77.1) |
| Oakland, California |
1,512 |
70.6 (66.7–74.2) |
| Orange County, Florida |
1,421 |
79.3 (76.2–82.1) |
| Palm Beach, Florida |
2,284 |
81.5 (79.2–83.6) |
| Philadelphia, Pennsylvania |
1,464 |
80.3 (77.1–83.2) |
| San Diego, California |
2,249 |
71.9 (68.8–74.9) |
| San Francisco, California | 2,005 | 75.2 (72.3–77.9) |
Abbreviation: CI = confidence interval.
* Short sleep duration defined as <9 hours for students aged 6–12 years and <8 hours for students aged 13–18 years.
† Unweighted number of survey respondents. Categories might not sum to sample total because of missing responses.
§ Significantly different by sex (p<0.05).
¶ Significantly different from grade 10 (p<0.05).
** Significantly different from grade 11 (p<0.05).
†† Significantly different from grade 12 (p<0.05).
§§ Significantly different from grade 9 (p<0.05).
¶¶ Non-Hispanic.
*** Significantly different from black students (p<0.05).
††† Significantly different from Asian students (p<0.05).
§§§ Significantly different from white students (p<0.05).
¶¶¶ Significantly different from Hispanic students (p<0.05).
**** Unreliable estimate. Denominator <100 students.